Bolt and nut assembling machine



F|LED SEPT. 9, 1921` 3 SHEETS-SHEET 1 IN VEN TOR.

u ATTORNEYA Jan. 2, 1923. 1,440,646

E. G. SWANSON.

BOLT AND NUT AssEMBLINs MACHINE.

FILED SEPT. 9, 1921. 3 SHEETS-SHEET 2 INVEN TOR.

ma )1Q/M.

M ATTORNEY Jan. 2, 1923. v 1,440,646

E. G. SWANSON.l BOLT AND NUT AssEMBLINc MACHINE,

FILED SEPT, 9, 1921. 3 sHEETs-sHEET 3 meeuw ma 1 f UNIT-Erp Aires j 'f f non? niv-D giltneirnnrfn- Application filledl September 9, Serialvll'o.l 49,9j-,5.90. 3l

1 To all whom t may coawem:

-.soN, a citizenof'the'United States, residing" Beit known that I, EMIL GILBERT-SWAN- at Moline,'in the county ofRock Island and State of Illinois, A.have invented certa-1n new vand useful Improvements in Bolt and Nut Assembling Machines, 'of which the following isa specification'.

` My `invention 'pertains'.to bolt and nut assembling machines, by the operation 3of `which the nuts are Aautomaticallyseated on the threaded endsof the bolts, the nuts being fed continuously from'one source of supply,

,and the bolts from another source of supply,

to a common point in the machine for assemblage.'y I

The chief purpose of the present inventionis y'to provide a simple and eflicient means for handling the nuts and bolts, and seating the nutsfully on the ends of the bolts, so as' to preclude accidental release from the bolt. The arrangement of the machineissuch thatthe'boltsand nuts have a progressive movement while they are being assembled, so that the operation is being performed with several 'of such articles at the same time. By this means considerable time is jsaved.

. The particular construction, arrangement, and operation of the various parts of the invention will 'bemore fully understood from the `following lspecification, reference being had.` to the'drawings accompanying the same,'in whichz" Fig. l is a vertical medial section through the main part of the'- machine.

lFig. 2 is aldetail ofl one ofV the nut-centeringedevices. l

3.1543; plan View ofthe main operatingnfiechanism.z 1

Fig. Tis a detail of-"the bolt feeding devices', ..-With*some-parts :of the machine in sectional* y. -v

l Fig. 51is1'a` horizontal section on the line 545' of.- Figi 1 1,

Similar parts 'are indicated by corresponding :referencecharacters throughout the several figures. I

.llrepresents-a; stationary tablefand 2`v a verticalv shaft#f Vfixed' f' therein'. Rotatablymountedfonthe 'shaft 2 is` a'sleeve 3, to the lower yendE ofwhichi'isffixed ,a gear-wheel lgfdriven` by=a pinion'l on the upper end of a shaft l6,journ'aledin a bearing 7 on the :loweraface ,off the-table 1. 4Power may be applied to the shaft 6 in any known manner,

as by means of a wormfgear, onl saidshaft,

actuated by a 'worm 9 on a shaft-92m -which movement is' imparted., this=latter arrangement the `movement of thesha-ft 6 is comparatively slow," and lby forming the wheel 4 with a greater diameter than ,that of the wheel 5, the movement'ofsuch wheel and the sleeve 3 is still more reduced. f; 'l

At its lower end the sleeve 3,is provided.'

with a table 10 of ,circularifornn inthe outer edge of which, at regularintervals, are recesses 11, of suitable size to receive the nuts which are to be assembled.. At one side of the table 10 is fixed to the table' 1 a blockvv 12, upon which is'v supported a nut chute 13, in inclined position, soI as to provide a gravity feed for the nuts, shown atll.- The:A

discharge end ofthechutejis in close proximity to the edge of thetable 10-Sothatv 17, and in contact at its innerend :withfa cam 2O on the lower face of the.table10. 4.As the `table is turned sofas to bring oneofthe recesses 11 opposite to theendofthechute 13, the rod `19 passestheend ofthecam, permitting such rod andthelplungerto move inwardly, the plunger carrying one of vthe nuts into position on the table. The ,recesses are formed of greater length than is required'for 'the nut, and are provided at their inner ends with adjustment blocks 11a, the size of which may be varied to accommodate nuts of different sizes. Said blocks also assist in properly positioningthe nutto receive the companion bolt, which is fed downwardly from a pointabove the nut, when in position to receive the same.`

The nuts are `furthercentered by-'means forced upwardly by a cam 24 `(Fig. 4), causing the upper end of the pin to enter the Iso I opening in the nut in the recess immediately the spindles 27 is a pinion 28, in mesh withl the teeth of a gear-disk 29, fixed to the. shaft 2. The pinions and spindles are thus rot-atable together, at the same time permitting a vertical movement of theespindles within said pinions.

Rotatable upon the upper end of the shaft 2 is a hub 30, pivot-ally connected with which are radial arms 31, fitted at their outer ends with yokes 32- partially encircling collars 33 fixed on the upper ends of the spindles- 27, such collars having annular channels 34 engaged by pins 35 in the yokes 32. On their lower faces the arms 31are fitted with rollers 36, which passover a cam-track 37 on theupper face of the disk 29. rThis results in a raising and lowering of the spindles 2T in one part of their progress. At their lower ends t-he spindles 2T are provided with sockets 38, adapted to receive the head of a bolt, and turn the same upon the spindle being properly7 rotated, The positioning of the bearings 26 is such that the spindles are in alignment with the recesses 11, vertically. The spindles are held in the collar-S33 so as to be capable of adjustment therein, as by a set-screw, whereby the position of such spindles with relation to the table 10 can be varied to allow for bolts of greater or less length. l

Upon the sleeve 3 being properly rotated, the tables 10 and 25 will be carried roundv therewith, the'pinions 28 having a planetary movement with relation to the disk 29, which is stationary. A rotary movement is thus yimparted to the pinions 28 and spindles 2T, Suiicient to give approximately sixv turns to the spindles in a complete rotation of the tables.

Secured at their ends to the tables 1Q and 25, are posts 39, to whch are secured sleeves 40, so as to be capable of vert-ical adjustment thereon, each of said sleeves carrying a pair of spaced-apart arms 4l, in the outer ends vofwhich are secured dies 42, provided with bolt-receiving recesses 43. Mounted on the block 1-2 is a support 44, secured to which is a bolt-chute 45, adapted for the gravity feed of a succession of bolts, as shown at .46, such bolts being fed into the chute in any desired manner, as fronf a hopper. At a point between the discharge end of the bolt chute and the table 10 is a post 47, fixed to the plate 12, and on the upper end Vof said postis mounted a pair'of spaced-apart disks48 so as to be rotatable thereon. Said disks areV and which is fed downwardly 'to lits position' in the arms 41'.

provided in their edges with recesses 49, into which the bolts are fed one at a. time, and are then delivered to the arms 41 by the rotation of the disks. This is accomplished by means of pins 50, uniting said disks, and

which pins are engaged by the forward ends of the arms 41 in the rotation of the table 10. As shown in the drawings the vdisks 48 are shown provided with four of the recesses 49 and the movement of each of the arms 4l will give. to said disks a quarter turn, so that by each of such movements one of the bolts will be advanced into the machine, in position to be threaded into the opening in one of the nuts 14 immediately beneath the'same. This is accomplished in the lnanner hereinbefore described. by the rotation of the spindle which is immediately above such bolt, engage the hea-d of the bolt. After the desired'number of revolutions have been given to the bolt, the spindle is elevated again. and the bolt, with the nut in place thereon, is ejected from the machine.

To prevent accidental release Aof the bolts while being fed into the machine, there is fixed to the chute 45 a curved guide 51. in a plane just above that of the upper disk 48. the heads of the bolts riding on said guide. and being supported thereby until prevent a too rapid movement of the disks 48 a spring 52 is provided. fixed at one end to one side of the chute 45. and having a curved portion adapted to enter the recesses 49, and hold the disks from movement. except when acted upon by the arms 41.

The ejection of the bolts from the machine is rendered certain by the following means Projecting from each of the sleeves 40 is a bracket 53. pivotally supported on which is an arm 54, provided with a trip adapted for engagement with a projec-, tion 56 on the upper end of a post 5T, vertically adjustable in a socket 5S on the table 1. The contact of the trip 55 with the projection operates to'move the arm 54.- which is normally ljust in rear of one of the bolts. outwardly, forcing the bolt from The bracket 53 being vertically movable with the sleeve 40, results in a change of position of the arm 54 at times, requiring a change in the vertical position of the projection 56 to conform thereto. The arms 54 are held normally in an inactive position by means of coiled springs 59 connecting said arms with the sleeves 40. i

To recapitulatez-hen the machine has been set in motion. the opera-tion thereof is continuous, a constantfeed of the nuts and bolts being provided in parallel movement at one side of the machine. such nuts and bolts being then arranged in pairs for assemb-ling, andthe assembling operation bef .l f.' v 1,440,646'

rotating devices mounted in the other table. in vertical ahgnmentwvh the-nut-receiving means; means for impart-ing rotation to said bolt-rotating devices; means for raising and loweringl said vbolt-rotating devices while being rotated; means for feeding a plu# rality of bolts, in succession, to said boltrotating devices; and means for feeding a plurality of nuts,'in succession, to said nut receiving means.

2. A device? of the class described, coinprising a bed-plate; a pair of spaced-apart tables supported thereon, so as to be capable of simultaneous rotation, one of said tables being provided with nut-receiving recesses; a series of spindles rotatably mounted in the other table in vertical alignment with said nut-receiving recesses, and provided with means for engagement with the head of a bolt; mea-ns for raising and lowering said spindles at a given point in the rotation of said tables; means for delivering a succession of bolts, in position to be engaged by said spindles; means for delivering a succession of nuts, in position to be received by said recesses; and means for causing said nuts to consecutively enter said recesses.

3. A device of the class described, comprising a bed-plate; a pair of tables mounted thereon, so as to rotate together, one of said tables being provided at its .edge with nut receiving' recesses; means for properly positioning the nuts in said recesses, in position to receive the end ofa bolt; a series of spindles rotatably mounted in the other table, in vertical alignment with said recesses, and provided yvith bolt engaging means at one of their ends; means for r0- tating said" spindles coincidently with the rotation of said tables; means for raising and lowering said spindles at a givenv point in the rotation of said tables; means for delivering a succession of bolts into said vmachine; means for conveying said bolts` successively, into a position to be engaged by said spindles; and means for feeding a plurality of nuts, in succession, :to VSaid nutreceiving recesses.

4. A device ofathe class described, comprising a bed-plate; a pair ofvspaced-apart Vtables mounted thereon, so as to rotate together. the lower one of said tables being provided with a series of nut receiving openings: a series of spindles rotatably mounted in the upper table, in vertical alignment with said openings;l1neans for rotating ysaid of Abolts into said machine, Ain' position to b'e'" engaged by saidspindles; means' for feeding"4 a plurality of nut-'s into saidiopenings, in suc`L spindles coincidently with: the 4-movement of' said tables; means fon-feedinga'plurality:

cession; and'means-` for discharging the asl" sembled bolts and nuts 'from' the machineif y' 5. A device of the class described",com? tablesmounted thereon, so as "t'o` be capabl'e of simultaneous rotation,vv one of said tablesy prising a bed-plate; a pair Ofs'paCed-apart being fitted with nut-receiving openings; a series of spindles rotatably mounted in the other table; ymeans for impart-ing" to saidv spindles a number of rotary movements for each rotation of said tables; means for rais'- ing and lowering said spindles at a point near the end of said movements; means for feeding a plurality of nuts consecutively into said openings; means for feeding into said machine a plurality of bolts, in. position-to i be received by said spindles and turned into said nuts; and means for discharging the assembled nuts and bolts from the machine at the end of said rotary movements of the spindles.

6. A machine of the class described, comprising a bed-plate; a vertical post fixed therein; a pair of tables rotatably mounted on said post, one of said tables being fitted with a series of nut-receiving openings; a

series of spindles rotatably mounted inthe other of said tables` in vertical alignment with said openings, and adapted for engage-l ment with the head ofa bolt; al gear-disk fixed to said post.; pinions on said spindles,

in mesh with said gear-disk, and permitting free vertical play of the spindles; collars on the upper ends of said spindles; a hub loosely mounted on said vertical shaft; arms pivotallyconnected with said hub and provided with yokes in engagement with said collars; and means for consecutively raising and lowering said arms at one point in the rotation of said tables. 7. In a device' of the class described, a table rotatably mounted; a series of spindles rotatably mounted in said table and provided with b olt engagingv means; means for im'- pa-rting to 'said spindles a number of rotations in each revolution of said table; boltreceiving devices movableN with said table, and adapted to receive a bolt in position to be engaged by said spindles; a bolt-chute adapted 'to convey a succession of bolts Jto a point in proximity to said bolt-receiving devices; and means for delivering said bolts, consecutively, tb said bolt-receiving devices. 8. In a device of the class described, a table rotatably mounted; a series of spindles rotatably mounted in said table and provided with bolt-engaging means; means for imparting to said spindles a, seriesof rotations f raising and lowering said spindles at the end of one series of rotations and commencement of another one thereof: bolt-receiving arms movable with said table, adapted to receive a bolt in position to be engaged by said spindles: a bolt-chute adapted to convey a succession ot' bolts to a point in proximity to said bolt receiving arms: and bolt convey..`

ing disks. adapted for rotation by Said arms, capable of receiving said bolts and conveying them. one at a time. to said bolt receiving arms.

9. A machine of the class described comprising a bed-plate: a paii` ot' spaced-apart tables mounted thereon so as to be capable of simultaneous rotation. one of said tables being fitted with a series of nut-receiving openings; a series of spindles rotatably mounted spindles: bolt-conveyingdisks capable of receiving a succession of bolts and delivering them. consecutively to said arms; means for feeding a plurality of bolts t0 said disksin succession: means for actuating said disks coincident with the movement. of said arms; a guide for said bolts While being conveyed by said disks. and means for holding said ,disks yieldably. at tlieend ofl each partial rotation thereof.

ln testimonv whereof I atiixmy signature.

EMIL GILBERT SXVAYSOX.

means forimparting to said spin- 

